Sgn class

The sign function.

Inheritance

Constructors

Sgn(Expression arg)
Creates a new sign function with given argument expression.

Properties

arg Expression
The argument of this sign function.
no setter
args List<Variable>
List of arguments of this function. Arguments ust be of type Variable.
getter/setter pairinherited
domainDimension int
The dimension of the domain of definition of this function.
no setterinherited
hashCode int
The hash code for this object.
no setterinherited
name String
Name of this function.
getter/setter pairinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

derive(String toVar) Expression
Derives this expression with respect to the given variable.
override
evaluate(EvaluationType type, ContextModel context) → dynamic
Evaluates this expression according to given type and context.
override
getParam(int i) Variable
Returns the i-th parameter of this function (0-based).
inherited
getParamByName(String name) Variable
Returns the parameter with the given name.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
simplify() Expression
Returns a simplified version of this expression. Subclasses should overwrite this method, if applicable.
override
toFullString() String
Returns the full string representation of this function. This could include the name, variables and expression.
inherited
toString() String
Returns a string version of this expression. Subclasses should override this method. The output should be kept compatible with the Parser.
inherited

Operators

operator %(Expression exp) Expression
Modulo operator. Creates a Modulo expression.
inherited
operator &(MathFunction g) MathFunction
Compose operator. Creates a CompositeFunction.
inherited
operator *(Expression exp) Expression
Multiply operator. Creates a Times expression.
inherited
operator +(Expression exp) Expression
Add operator. Creates a Plus expression.
inherited
operator -(Expression exp) Expression
Subtract operator. Creates a Minus expression.
inherited
operator /(Expression exp) Expression
Divide operator. Creates a Divide expression.
inherited
operator ==(Object other) bool
The equality operator.
inherited
operator ^(Expression exp) Expression
Power operator. Creates a Power expression.
inherited
operator unary-() Expression
Unary minus operator. Creates a UnaryMinus expression.
inherited